Optical plate and backlight module using the same

Details Optical plate and backlight module using the same Optical plate and backlight module using the same

2007-10-31

2010-10-12

Lee, Y My Quach (Department: 2885)

Illumination

Plural light sources

With modifier

C362S247000, C362S625000

Reexamination Certificate

active

07810949

ABSTRACT:
An exemplary optical plate (20) includes a transparent plate unit. The transparent plate unit includes a light output surface (202), a bottom surface (203), a plurality of microstructures (206), a diffusion layer (205), and a lamp-receiving portion (204). The bottom surface is opposite to the light output surface. The microstructures are formed on the bottom surface. Each microstructure includes four side surfaces connected with each other. A transverse width of each side surface decreases along a direction away from the base surface of the microstructure. The diffusion layer is formed on the light output surface. The lamp-receiving portion is defined in the bottom surface. A backlight module (200) using the present optical plate is also provided.

REFERENCES:
patent: 7458714 (2008-12-01), Chang
patent: 7654719 (2010-02-01), Chang
patent: 7663804 (2010-02-01), Chang
patent: 2006/0215268 (2006-09-01), Taya et al.
patent: 2007/0086179 (2007-04-01), Chen et al.
patent: 2007/0147073 (2007-06-01), Sakai et al.

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